Improvement in lamp-burners



E. BOILEAU.

LAMP BURNER.

Patented Sept. ze. 187e.

No.18Z,635.

FIG. 3.

FIG-3.

INVENTOR:

ATTEST N.PETERS. PHOTO-LITHOGRMHER, WASMlANGTO-Iy D. Cy

UNITED STATES PATENT @Errea ETIENNE BOILEAU, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN LAMP-BURNERS.

Specification forming part of Letters Patent N o. l @2,635, dated September 26, 1876; application filed March 22, 1ero.

To all whom t may concern:

Be it known that I, ETIENNE BOILEAU, of the city and county of St. Louis and State ot' Missouri, have invented a certain new and usefullmprovementinLamp-Burners,ot'which the following' is a full, clear, and eXact description, reference being had to the accompanying drawing, making a part of this specification.

This invention relates to an improvement on Argand burners.

Myim provement consists in the combination of three or more star-wheels with volute cams, by which said wheels are sim ultaneously turned in either direction, as described.

Figure l is an axial section. Fig. 2'is an under perspective view of the cam-collar. Fig. 3 is a horizontal section t-hrough the Wicktubes at .fr x, Fig. l.

The burner hasthe usual interior air-tube A, with side branch ct, through which the air enters the tube. The air-tube forms the interior support of the wick. The tube A is surrounded by concentric frusto-conical tube B, as usual, and which forms the outer support of the wick. b b b are three vertical slots in the tube B, in Which turn the three star-wheels, O C O, by which the wick is raised or lowered. These Wheels turn on `journals c, having journal-bearing at the upper ends of the springs D, so as to allow of the wheels moving outward or inward in conformity with the thickness of the wick. E is the cam-collar, turning freely on the tube B, and having a horizontal annular ilange, e, whose outer edge is formed into down-turned volute cams el e1 01 which engage with the spur-points of the wheels G, and, on the turning of the collar, cause the simultaneous rotation of said Wheels.

I have shown my preferred numberof wheels and their operating-cams; but the number may be varied without changing the essential feature of the invention.

The Vcams el are over the wheels G, this position allowing the outward or inward movement ot' the Wheels on their spring-bearings without affecting the action of the cams on the wheels. The collar E has projections e2, which are engaged by the inner projection f of the burner-top F, so that as the top F is turned it causes the rotation of the cam-collar E. This cap F has the usual appliances for the support oil the chimney, and turns on the marginal edge of the perforated cup G, which, as usual, is iixed to the tube B, and has at its bottom the screw-threaded part g, by which the burner is secured to the lamp, as usual. The cams c1 extend past each other at the ends, so that the Wheels C come under the influence of a succeeding cam before the escape from the one preceding it.

I claiml. The combination, in a lamp-burner, of star-Wheels O and volute cams o1 on collar E, substantially as set forth.

2. The combination of the volute cams e1, star-wheels O, and spring-bearings I), substantially as and for the purpose set forth.

ETIENNE BOILEAU. Witnesses:

SAME. KNIGHT, ROBERT BURNS. 

